Improvement in soldering-machines



,tintin-tl' gisten sind emitir.

Letters Patent No. 99,410, dated Februmy 1, 1870.

IMPROVEMENT IN SLDBRING-MACHINES.

The Schedule referred to in these Letten Patent and making part of the saxne.

I, E. T. CovELL, of Brooklyn, county of Kings, and I State of N ew York, have invente-d certain Improve ments in Soldering-lilachines, of which the following is a specification. l

My invention relates to the construction of im proved forms of apparatus for soldering simultaneously the entire length of the ordinary side corner-seam of a metallicl vessel, by first suspending the same,over a bath 'of molten solder, iu such manner as that it shall rest in a plane parallel, or but slightly inclined to the surface of the molten solder, and then mmersing or dipping the entire length of the seam in the solder, either by producing au upward movement or flow 'of the solder until the seam is reached, (thel supports upon which the whole rests bein g fixed and stationary,)

vor by a movement of said supports toward the solder.

vessel placed thereon, to project through the same far enough to reach the surface of the molten solder iu the pan, and there sustain it.

The second part of my iuventionrelates tothe combination of a separate reservoir for molten solder, with a pan or vessel in which a portion of the solder is exposed, to receive the joints of metallic vessels, to be coated and soldered by being dipped therein, said reservoir being provided with a piston or plunger, operated by a screw, or with any equivalent device whereby the `quant-ity of molten solder in the soldering-pan may be increased or diminished,- and its surface raised, lowered, and adjusted at pleasure.

The object of this part of my invention is to ohviate the necessity of moving the supports upon which the metallic vessel, whose joints are to be soldered by immer-sion, rests, and to ali'ord a ready means-ot' adjust ing the vdepth of the solder, with relation to suitable fixed supports for the vessel.

In the accompanying drawings- Figure 1 is a plan view of my improved solderingapparatus, with supply-reservoir and dipping-pan combined;

Figure 2, a central vertical longitudinal section in line a; x of tig. 1, in which the movements of the plunger, and of the cross-bar sustaining it, are illus- Hated by dotted lines;

Figure 3, a transverse section in line :vx of tig. 2. Figure 4, a plan view of my apparatus, showing a modification iu the form `of the supporting-plate on the dipping-pan, more fully illustrated by a transverse section-thereof in Figure 5;

, Figure 6, a plan view of a, dipping-pan wit-hout reservoir, having a movable supporting-plate combined therewith Figure 7, a vertical transverse section; and

Figure 8, a vertical longitudinal section of the same., the manner of placing thereon a'vessel to be soldered heilig illustrated by dotted lines-in fig. 7.

A is the supply-reservoir, and B, the dipping-pan of my apparatus. These are separated by the partition or division-plate a, which is provided with an aperture, b, (figs. 2, 3, and 5,) at the bottom thereof, forming the only communication between the two.

The relative proportions and arrangement of the dipping-pan B and its supply-reservoir A may be variedit being only necessary that a proper communi-v cation between the two, to permit a tlow and retlow ot' solder from the one to the other, shall be established.

U is a plunger or piston-plate, fitting closely, and moving vertically within the reservoir A.

It is supported and raised or lowered by a thumbscrew, D, which works -througll a nut or threaded aperture in the cross-bar E, and is secured to the plunger by a loose joint.

The bar E is hinged at one cud to the upper edge of the reservoir A, and, extending across the same, rests upon, hooks over, and is fastened to the opposite edge thereof.

By means of this hinged connection of the supporting-bar E to the reservoir, the plunger can be easilyv lifted out of the reservoir, in order to fill it, without detachment therefrom, as illustrated by the dotted lines in fig. 2. s

F F (dlgs-2 and 3) are inclined plates, fixed over the dipping-pau or vessel B, upon each side thereof, so as toleaye au elongated slot or open space, G, between them, extending the entire length of the pan, more or less. to permit the angle or corner formed by the two sides, or at the top or bottom of a can or other vessel, to project through a short distance.

` rlhe plates F F, or their ,edges along the opening G, will serve to support the can, whose angle, edge, or

jecting arms K K, resting upon springs S S, which4 support it in the upper part of the pan.

-ltis forced down, at pleasure, to the level of the molten solder in the pan, by means of pressure exerted This extended opening is of such width as thereon, either directly, by hand, or otherwise, by means of treadles, or other devices not illustrated.

In operation, lthe reservoir and pan A B, or the pan B', are placed overa suitable furnace, and filled or partially filled with. solder. The depth of 'molten solder in the pan B is then properly regulated, by turning the thumbLscrew D, which, by forcing down the plunger C in the reservoir A, will cause the solder therein to flow, through the aperture b, into said pan B, or, by raising the plunger, will cause a retlow thereof out of said pan.

Then the depth of solderis properly regulated, in relation to the opening G between the plates F F, the seam at the angle of the can or vessel is inserted through said'opening G, until the vessel rest-s upon the edges of the plates F F, and is immersed, to a proper depth, in the molten solder below. The can or lvessel is4 then raised with an inclination of one end,

to allow all surplus solder to run on".

If the top or bottom seam of a round vesselis to be soldered, the angle is inserted between the plates F F, and then revolved until its entire` circumference has passed through the solder.

As the. solder in the pan B is diminished, more is forced in from the reservoir, by a turn ofthe screw D.

Where a supp1yreservoir,A, is dispensed with, and the dipping-pan B alone used, ythe supporting-plate o r plates F" or F' F are lowered within the pan, to a suitable height above the solder, the proper relative distance between the plates and solder being constantly maintained bya movement of said plates, as the quantity of solder either diminishes, or is increased by a new supply.

Hence, in this invention, the depth to which a seam may be immersed into the solder-bath, is regulated in two ways-first, by the width of the slot or opening through which the seam` is inserted, and, secondly, by varying the distance between the surface of the solder and the sides of vsaid slot or opening, eitherby amovement of the solder' to or from the opening, by means of a plunger, working in an auxiliary reservoir con, nected therewith, or by a movement of the plate or plates embracing the slot or opening, to or from the solder. Y

Slotted plates, each embracing a slot or opening of dierent dimensions, to suita dierent size or description of vessel, may be used with the same dippingpan, if desired. v

I claim, as my invention- 1. Anelongated slot or opening, formed between two barsor plates, or in a single plate, in combination with a suitable solder-pan, substantially as herein set forth.

2. The auxiliary reservoir A, provided with an opening or conduit, b, when combined with the solderpan B of a soldering-apparatus, substantially as here in described.

3. The combination of the piston or plunger C with the reservoir A and solder-pau B of my improved soldering-apparatus, substantially as herein set fort-h.

In testimony that l claim the foregoing, I have hereunto set my hand, this 15th day of July, 1868.

E. T. COVELL.

`Witnesses:

GEO. B. BOTEN, J AMES N ADDY. 

